711 lines
21 KiB
Go
711 lines
21 KiB
Go
package server
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import (
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"context"
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"errors"
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"fmt"
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"github.com/gin-gonic/gin"
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"github.com/gorilla/websocket"
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"github.com/kercylan98/minotaur/utils/concurrent"
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"github.com/kercylan98/minotaur/utils/log"
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"github.com/kercylan98/minotaur/utils/str"
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"github.com/kercylan98/minotaur/utils/super"
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"github.com/kercylan98/minotaur/utils/timer"
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"github.com/kercylan98/minotaur/utils/times"
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"github.com/panjf2000/ants/v2"
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"github.com/panjf2000/gnet"
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"github.com/panjf2000/gnet/pkg/logging"
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"github.com/xtaci/kcp-go/v5"
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"google.golang.org/grpc"
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"net"
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"net/http"
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"os"
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"os/signal"
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"runtime/debug"
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"strings"
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"sync/atomic"
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"syscall"
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"time"
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)
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// New 根据特定网络类型创建一个服务器
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func New(network Network, options ...Option) *Server {
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server := &Server{
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runtime: &runtime{messagePoolSize: DefaultMessageBufferSize, messageChannelSize: DefaultMessageChannelSize},
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option: &option{},
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network: network,
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online: concurrent.NewBalanceMap[string, *Conn](),
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closeChannel: make(chan struct{}, 1),
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systemSignal: make(chan os.Signal, 1),
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ctx: context.Background(),
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}
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server.event = newEvent(server)
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switch network {
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case NetworkHttp:
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server.ginServer = gin.New()
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server.httpServer = &http.Server{
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Handler: server.ginServer,
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}
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case NetworkGRPC:
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server.grpcServer = grpc.NewServer()
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case NetworkWebsocket:
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server.websocketReadDeadline = DefaultWebsocketReadDeadline
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}
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for _, option := range options {
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option(server)
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}
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if !server.disableAnts {
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if server.antsPoolSize <= 0 {
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server.antsPoolSize = DefaultAsyncPoolSize
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}
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var err error
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server.ants, err = ants.NewPool(server.antsPoolSize, ants.WithLogger(log.GetLogger()))
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if err != nil {
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panic(err)
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}
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}
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server.option = nil
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return server
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}
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// Server 网络服务器
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type Server struct {
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*event // 事件
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*runtime // 运行时
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*option // 可选项
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network Network // 网络类型
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addr string // 侦听地址
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systemSignal chan os.Signal // 系统信号
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online *concurrent.BalanceMap[string, *Conn] // 在线连接
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ginServer *gin.Engine // HTTP模式下的路由器
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httpServer *http.Server // HTTP模式下的服务器
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grpcServer *grpc.Server // GRPC模式下的服务器
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gServer *gNet // TCP或UDP模式下的服务器
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isRunning bool // 是否正在运行
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isShutdown atomic.Bool // 是否已关闭
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closeChannel chan struct{} // 关闭信号
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ants *ants.Pool // 协程池
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messagePool *concurrent.Pool[*Message] // 消息池
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messageChannel chan *Message // 消息管道
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multiple *MultipleServer // 多服务器模式下的服务器
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multipleRuntimeErrorChan chan error // 多服务器模式下的运行时错误
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runMode RunMode // 运行模式
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shuntChannels *concurrent.BalanceMap[int64, chan *Message] // 分流管道
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channelGenerator func(guid int64) chan *Message // 消息管道生成器
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shuntMatcher func(conn *Conn) (guid int64, allowToCreate bool) // 分流管道匹配器
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messageCounter atomic.Int64 // 消息计数器
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ctx context.Context // 上下文
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}
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// Run 使用特定地址运行服务器
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// - server.NetworkTcp (addr:":8888")
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// - server.NetworkTcp4 (addr:":8888")
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// - server.NetworkTcp6 (addr:":8888")
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// - server.NetworkUdp (addr:":8888")
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// - server.NetworkUdp4 (addr:":8888")
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// - server.NetworkUdp6 (addr:":8888")
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// - server.NetworkUnix (addr:"socketPath")
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// - server.NetworkHttp (addr:":8888")
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// - server.NetworkWebsocket (addr:":8888/ws")
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// - server.NetworkKcp (addr:":8888")
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// - server.NetworkNone (addr:"")
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func (slf *Server) Run(addr string) error {
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if slf.network == NetworkNone {
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addr = "-"
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}
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if slf.event == nil {
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return ErrConstructed
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}
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slf.event.check()
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slf.addr = addr
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var protoAddr = fmt.Sprintf("%s://%s", slf.network, slf.addr)
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var messageInitFinish = make(chan struct{}, 1)
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var connectionInitHandle = func(callback func()) {
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slf.messagePool = concurrent.NewPool[*Message](slf.messagePoolSize,
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func() *Message {
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return &Message{}
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},
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func(data *Message) {
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data.t = 0
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data.attrs = nil
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},
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)
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slf.messageChannel = make(chan *Message, slf.messageChannelSize)
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if slf.network != NetworkHttp && slf.network != NetworkWebsocket && slf.network != NetworkGRPC {
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slf.gServer = &gNet{Server: slf}
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}
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if callback != nil {
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go callback()
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}
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go func(messageChannel <-chan *Message) {
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messageInitFinish <- struct{}{}
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for message := range messageChannel {
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msg := message
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slf.dispatchMessage(msg)
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}
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}(slf.messageChannel)
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}
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switch slf.network {
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case NetworkNone:
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go connectionInitHandle(func() {
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slf.isRunning = true
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slf.OnStartBeforeEvent()
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})
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case NetworkGRPC:
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listener, err := net.Listen(string(NetworkTcp), slf.addr)
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if err != nil {
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return err
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}
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go connectionInitHandle(nil)
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go func() {
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slf.isRunning = true
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slf.OnStartBeforeEvent()
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if err := slf.grpcServer.Serve(listener); err != nil {
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slf.isRunning = false
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PushErrorMessage(slf, err, MessageErrorActionShutdown)
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}
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}()
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case NetworkTcp, NetworkTcp4, NetworkTcp6, NetworkUdp, NetworkUdp4, NetworkUdp6, NetworkUnix:
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go connectionInitHandle(func() {
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slf.isRunning = true
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slf.OnStartBeforeEvent()
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if err := gnet.Serve(slf.gServer, protoAddr,
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gnet.WithLogger(log.GetLogger()),
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gnet.WithLogLevel(super.If(slf.runMode == RunModeProd, logging.ErrorLevel, logging.DebugLevel)),
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gnet.WithTicker(true),
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gnet.WithMulticore(true),
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); err != nil {
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slf.isRunning = false
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PushErrorMessage(slf, err, MessageErrorActionShutdown)
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}
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})
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case NetworkKcp:
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listener, err := kcp.ListenWithOptions(slf.addr, nil, 0, 0)
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if err != nil {
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return err
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}
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go connectionInitHandle(func() {
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slf.isRunning = true
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slf.OnStartBeforeEvent()
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for {
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session, err := listener.AcceptKCP()
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if err != nil {
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continue
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}
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conn := newKcpConn(slf, session)
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slf.OnConnectionOpenedEvent(conn)
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slf.OnConnectionOpenedAfterEvent(conn)
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go func(conn *Conn) {
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defer func() {
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if err := recover(); err != nil {
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slf.OnConnectionClosedEvent(conn, err)
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}
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}()
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buf := make([]byte, 4096)
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for {
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n, err := conn.kcp.Read(buf)
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if err != nil {
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panic(err)
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}
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PushPacketMessage(slf, conn, 0, buf[:n])
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}
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}(conn)
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}
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})
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case NetworkHttp:
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switch slf.runMode {
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case RunModeDev:
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gin.SetMode(gin.DebugMode)
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case RunModeTest:
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gin.SetMode(gin.TestMode)
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case RunModeProd:
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gin.SetMode(gin.ReleaseMode)
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}
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go func() {
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slf.isRunning = true
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slf.OnStartBeforeEvent()
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slf.httpServer.Addr = slf.addr
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go connectionInitHandle(nil)
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if len(slf.certFile)+len(slf.keyFile) > 0 {
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if err := slf.httpServer.ListenAndServeTLS(slf.certFile, slf.keyFile); err != nil {
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slf.isRunning = false
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PushErrorMessage(slf, err, MessageErrorActionShutdown)
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}
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} else {
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if err := slf.httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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slf.isRunning = false
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PushErrorMessage(slf, err, MessageErrorActionShutdown)
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}
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}
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}()
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case NetworkWebsocket:
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go connectionInitHandle(func() {
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var pattern string
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var index = strings.Index(addr, "/")
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if index == -1 {
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pattern = "/"
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} else {
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pattern = addr[index:]
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slf.addr = slf.addr[:index]
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}
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var upgrade = websocket.Upgrader{
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ReadBufferSize: 4096,
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WriteBufferSize: 4096,
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CheckOrigin: func(r *http.Request) bool {
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return true
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},
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}
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http.HandleFunc(pattern, func(writer http.ResponseWriter, request *http.Request) {
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ip := request.Header.Get("X-Real-IP")
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ws, err := upgrade.Upgrade(writer, request, nil)
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if err != nil {
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return
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}
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if len(ip) == 0 {
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addr := ws.RemoteAddr().String()
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if index := strings.LastIndex(addr, ":"); index != -1 {
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ip = addr[0:index]
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}
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}
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if slf.websocketCompression > 0 {
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_ = ws.SetCompressionLevel(slf.websocketCompression)
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}
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ws.EnableWriteCompression(slf.websocketWriteCompression)
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conn := newWebsocketConn(slf, ws, ip)
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for k, v := range request.URL.Query() {
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if len(v) == 1 {
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conn.SetData(k, v[0])
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} else {
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conn.SetData(k, v)
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}
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}
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slf.OnConnectionOpenedEvent(conn)
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defer func() {
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if err := recover(); err != nil {
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slf.OnConnectionClosedEvent(conn, err)
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}
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}()
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for {
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if err := ws.SetReadDeadline(super.If(slf.websocketReadDeadline <= 0, times.Zero, time.Now().Add(slf.websocketReadDeadline))); err != nil {
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panic(err)
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}
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messageType, packet, readErr := ws.ReadMessage()
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if readErr != nil {
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panic(readErr)
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}
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if len(slf.supportMessageTypes) > 0 && !slf.supportMessageTypes[messageType] {
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panic(ErrWebsocketIllegalMessageType)
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}
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PushPacketMessage(slf, conn, messageType, packet)
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}
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})
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go func() {
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slf.isRunning = true
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slf.OnStartBeforeEvent()
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if len(slf.certFile)+len(slf.keyFile) > 0 {
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if err := http.ListenAndServeTLS(slf.addr, slf.certFile, slf.keyFile, nil); err != nil {
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slf.isRunning = false
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PushErrorMessage(slf, err, MessageErrorActionShutdown)
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}
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} else {
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if err := http.ListenAndServe(slf.addr, nil); err != nil {
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slf.isRunning = false
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PushErrorMessage(slf, err, MessageErrorActionShutdown)
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}
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}
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}()
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})
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default:
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return ErrCanNotSupportNetwork
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}
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<-messageInitFinish
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close(messageInitFinish)
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messageInitFinish = nil
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if slf.multiple == nil {
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log.Info("Server", log.String(serverMark, "===================================================================="))
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log.Info("Server", log.String(serverMark, "RunningInfo"),
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log.Any("network", slf.network),
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log.String("listen", slf.addr),
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)
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log.Info("Server", log.String(serverMark, "===================================================================="))
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slf.OnStartFinishEvent()
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time.Sleep(time.Second)
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if !slf.isShutdown.Load() {
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slf.OnMessageReadyEvent()
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}
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signal.Notify(slf.systemSignal, syscall.SIGHUP, syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
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select {
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case <-slf.systemSignal:
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slf.shutdown(nil)
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}
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select {
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case <-slf.closeChannel:
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close(slf.closeChannel)
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}
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} else {
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slf.OnStartFinishEvent()
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time.Sleep(time.Second)
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if !slf.isShutdown.Load() {
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slf.OnMessageReadyEvent()
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}
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}
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return nil
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}
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// RunNone 是 Run("") 的简写，仅适用于运行 NetworkNone 服务器
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func (slf *Server) RunNone() error {
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return slf.Run(str.None)
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}
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// Context 获取服务器上下文
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func (slf *Server) Context() context.Context {
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return slf.ctx
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}
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// TimeoutContext 获取服务器超时上下文，context.WithTimeout 的简写
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func (slf *Server) TimeoutContext(timeout time.Duration) (context.Context, context.CancelFunc) {
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return context.WithTimeout(slf.ctx, timeout)
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}
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// GetOnlineCount 获取在线人数
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func (slf *Server) GetOnlineCount() int {
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return slf.online.Size()
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}
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// GetOnline 获取在线连接
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func (slf *Server) GetOnline(id string) *Conn {
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return slf.online.Get(id)
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}
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// GetOnlineAll 获取所有在线连接
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func (slf *Server) GetOnlineAll() map[string]*Conn {
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return slf.online.Map()
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}
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// IsOnline 是否在线
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func (slf *Server) IsOnline(id string) bool {
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return slf.online.Exist(id)
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}
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// CloseConn 关闭连接
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func (slf *Server) CloseConn(id string) {
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if conn, exist := slf.online.GetExist(id); exist {
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conn.Close()
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}
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}
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// GetID 获取服务器id
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func (slf *Server) GetID() int64 {
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if slf.cross == nil {
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panic(ErrNoSupportCross)
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}
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return slf.id
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}
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// Ticker 获取服务器定时器
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func (slf *Server) Ticker() *timer.Ticker {
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if slf.ticker == nil {
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panic(ErrNoSupportTicker)
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}
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return slf.ticker
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}
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// Shutdown 主动停止运行服务器
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func (slf *Server) Shutdown() {
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slf.systemSignal <- syscall.SIGQUIT
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}
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// shutdown 停止运行服务器
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func (slf *Server) shutdown(err error) {
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slf.isShutdown.Store(true)
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for slf.messageCounter.Load() > 0 {
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log.Info("Server", log.Any("network", slf.network), log.String("listen", slf.addr),
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log.String("action", "shutdown"), log.String("state", "waiting"), log.Int64("message", slf.messageCounter.Load()))
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time.Sleep(time.Second)
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}
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if slf.multiple == nil {
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slf.OnStopEvent()
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}
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defer func() {
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if slf.multipleRuntimeErrorChan != nil {
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slf.multipleRuntimeErrorChan <- err
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}
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}()
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if slf.ticker != nil {
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slf.ticker.Release()
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}
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if slf.ants != nil {
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slf.ants.Release()
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slf.ants = nil
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}
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for _, cross := range slf.cross {
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cross.Release()
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}
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if slf.messageChannel != nil {
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close(slf.messageChannel)
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slf.messagePool.Close()
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slf.messageChannel = nil
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}
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if slf.shuntChannels != nil {
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slf.shuntChannels.Range(func(key int64, c chan *Message) bool {
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close(c)
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return false
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})
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slf.shuntChannels.Clear()
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slf.shuntChannels = nil
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}
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if slf.grpcServer != nil && slf.isRunning {
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slf.grpcServer.GracefulStop()
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}
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if slf.httpServer != nil && slf.isRunning {
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ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
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defer cancel()
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if shutdownErr := slf.httpServer.Shutdown(ctx); shutdownErr != nil {
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log.Error("Server", log.Err(shutdownErr))
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}
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}
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if slf.gServer != nil && slf.isRunning {
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if shutdownErr := gnet.Stop(context.Background(), fmt.Sprintf("%s://%s", slf.network, slf.addr)); err != nil {
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log.Error("Server", log.Err(shutdownErr))
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}
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}
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if err != nil {
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if slf.multiple != nil {
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slf.multiple.RegExitEvent(func() {
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log.Panic("Server", log.Any("network", slf.network), log.String("listen", slf.addr),
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log.String("action", "shutdown"), log.String("state", "exception"), log.Err(err))
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})
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for i, server := range slf.multiple.servers {
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if server.addr == slf.addr {
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slf.multiple.servers = append(slf.multiple.servers[:i], slf.multiple.servers[i+1:]...)
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break
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}
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}
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} else {
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log.Panic("Server", log.Any("network", slf.network), log.String("listen", slf.addr),
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log.String("action", "shutdown"), log.String("state", "exception"), log.Err(err))
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}
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} else {
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log.Info("Server", log.Any("network", slf.network), log.String("listen", slf.addr),
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log.String("action", "shutdown"), log.String("state", "normal"))
|
||
}
|
||
slf.closeChannel <- struct{}{}
|
||
}
|
||
|
||
// GRPCServer 当网络类型为 NetworkGRPC 时将被允许获取 grpc 服务器，否则将会发生 panic
|
||
func (slf *Server) GRPCServer() *grpc.Server {
|
||
if slf.grpcServer == nil {
|
||
panic(ErrNetworkOnlySupportGRPC)
|
||
}
|
||
return slf.grpcServer
|
||
}
|
||
|
||
// HttpRouter 当网络类型为 NetworkHttp 时将被允许获取路由器进行路由注册，否则将会发生 panic
|
||
// - 通过该函数注册的路由将无法在服务器关闭时正常等待请求结束
|
||
//
|
||
// Deprecated: 从 Minotaur 0.0.29 开始，由于设计原因已弃用，该函数将直接返回 *gin.Server 对象，导致无法正常的对请求结束时进行处理
|
||
func (slf *Server) HttpRouter() gin.IRouter {
|
||
if slf.ginServer == nil {
|
||
panic(ErrNetworkOnlySupportHttp)
|
||
}
|
||
return slf.ginServer
|
||
}
|
||
|
||
// HttpServer 替代 HttpRouter 的函数，返回一个 *Http[*HttpContext] 对象
|
||
// - 通过该函数注册的路由将在服务器关闭时正常等待请求结束
|
||
// - 如果需要自行包装 Context 对象，可以使用 NewHttpHandleWrapper 方法
|
||
func (slf *Server) HttpServer() *Http[*HttpContext] {
|
||
if slf.ginServer == nil {
|
||
panic(ErrNetworkOnlySupportHttp)
|
||
}
|
||
return NewHttpHandleWrapper(slf, func(ctx *gin.Context) *HttpContext {
|
||
return NewHttpContext(ctx)
|
||
})
|
||
}
|
||
|
||
// GetMessageCount 获取当前服务器中消息的数量
|
||
func (slf *Server) GetMessageCount() int64 {
|
||
return slf.messageCounter.Load()
|
||
}
|
||
|
||
// ShuntChannelFreed 释放分流通道
|
||
func (slf *Server) ShuntChannelFreed(channelGuid int64) {
|
||
if slf.shuntChannels == nil {
|
||
return
|
||
}
|
||
channel, exist := slf.shuntChannels.GetExist(channelGuid)
|
||
if exist {
|
||
close(channel)
|
||
slf.shuntChannels.Delete(channelGuid)
|
||
slf.OnShuntChannelClosedEvent(channelGuid)
|
||
}
|
||
}
|
||
|
||
// pushMessage 向服务器中写入特定类型的消息，需严格遵守消息属性要求
|
||
func (slf *Server) pushMessage(message *Message) {
|
||
if slf.messagePool.IsClose() || slf.isShutdown.Load() || !slf.OnMessageExecBeforeEvent(message) {
|
||
slf.messagePool.Release(message)
|
||
return
|
||
}
|
||
if slf.shuntChannels != nil && message.t == MessageTypePacket {
|
||
conn := message.attrs[0].(*Conn)
|
||
channelGuid, allowToCreate := slf.shuntMatcher(conn)
|
||
channel, exist := slf.shuntChannels.GetExist(channelGuid)
|
||
if !exist && allowToCreate {
|
||
channel = slf.channelGenerator(channelGuid)
|
||
slf.shuntChannels.Set(channelGuid, channel)
|
||
go func(channel chan *Message) {
|
||
for message := range channel {
|
||
slf.dispatchMessage(message)
|
||
}
|
||
}(channel)
|
||
defer slf.OnShuntChannelCreatedEvent(channelGuid)
|
||
}
|
||
if channel != nil {
|
||
channel <- message
|
||
return
|
||
}
|
||
}
|
||
slf.messageChannel <- message
|
||
|
||
}
|
||
|
||
func (slf *Server) low(message *Message, present time.Time, expect time.Duration, messageReplace ...string) {
|
||
cost := time.Since(present)
|
||
if cost > expect {
|
||
var m = "unknown"
|
||
if message != nil {
|
||
m = message.String()
|
||
} else if len(messageReplace) > 0 {
|
||
m = messageReplace[0]
|
||
}
|
||
log.Warn("Server", log.String("type", "low-message"), log.String("cost", cost.String()), log.String("message", m), log.Stack("stack"))
|
||
slf.OnMessageLowExecEvent(message, cost)
|
||
}
|
||
}
|
||
|
||
// dispatchMessage 消息分发
|
||
func (slf *Server) dispatchMessage(msg *Message) {
|
||
slf.messageCounter.Add(1)
|
||
var (
|
||
ctx context.Context
|
||
cancel context.CancelFunc
|
||
)
|
||
if slf.deadlockDetect > 0 {
|
||
ctx, cancel = context.WithTimeout(context.Background(), slf.deadlockDetect)
|
||
go func(ctx context.Context, msg *Message) {
|
||
select {
|
||
case <-ctx.Done():
|
||
if err := ctx.Err(); err == context.DeadlineExceeded {
|
||
log.Warn("Server", log.String("MessageType", messageNames[msg.t]), log.Any("SuspectedDeadlock", msg.attrs))
|
||
}
|
||
}
|
||
}(ctx, msg)
|
||
}
|
||
|
||
present := time.Now()
|
||
defer func(msg *Message) {
|
||
if err := recover(); err != nil {
|
||
stack := string(debug.Stack())
|
||
log.Error("Server", log.String("MessageType", messageNames[msg.t]), log.Any("MessageAttrs", msg.AttrsString()), log.Any("error", err), log.String("stack", stack))
|
||
fmt.Println(stack)
|
||
if e, ok := err.(error); ok {
|
||
slf.OnMessageErrorEvent(msg, e)
|
||
}
|
||
}
|
||
|
||
if msg.t == MessageTypeAsync {
|
||
return
|
||
}
|
||
|
||
super.Handle(cancel)
|
||
slf.low(msg, present, time.Millisecond*100)
|
||
slf.messageCounter.Add(-1)
|
||
|
||
if !slf.isShutdown.Load() {
|
||
slf.messagePool.Release(msg)
|
||
}
|
||
|
||
}(msg)
|
||
var attrs = msg.attrs
|
||
switch msg.t {
|
||
case MessageTypePacket:
|
||
var conn, packet = msg.GetPacketMessageAttrs()
|
||
if !slf.OnConnectionPacketPreprocessEvent(conn, packet, func(newPacket []byte) { packet = newPacket }) {
|
||
slf.OnConnectionReceivePacketEvent(conn, packet)
|
||
}
|
||
case MessageTypeError:
|
||
var err, action = msg.GetErrorMessageAttrs()
|
||
switch action {
|
||
case MessageErrorActionNone:
|
||
log.Panic("Server", log.Err(err))
|
||
case MessageErrorActionShutdown:
|
||
slf.shutdown(err)
|
||
default:
|
||
log.Warn("Server", log.String("not support message error action", action.String()))
|
||
}
|
||
case MessageTypeCross:
|
||
slf.OnReceiveCrossPacketEvent(msg.GetCrossMessageAttrs())
|
||
case MessageTypeTicker:
|
||
msg.GetTickerMessageAttrs()()
|
||
case MessageTypeAsync:
|
||
handle, callback, cb := msg.GetAsyncMessageAttrs()
|
||
if err := slf.ants.Submit(func() {
|
||
defer func() {
|
||
if err := recover(); err != nil {
|
||
stack := string(debug.Stack())
|
||
log.Error("Server", log.String("MessageType", messageNames[msg.t]), log.Any("error", err), log.String("stack", stack))
|
||
fmt.Println(stack)
|
||
if e, ok := err.(error); ok {
|
||
slf.OnMessageErrorEvent(msg, e)
|
||
}
|
||
}
|
||
super.Handle(cancel)
|
||
slf.low(msg, present, time.Second)
|
||
slf.messageCounter.Add(-1)
|
||
|
||
if !slf.isShutdown.Load() {
|
||
slf.messagePool.Release(msg)
|
||
}
|
||
}()
|
||
err := handle()
|
||
if cb && callback != nil {
|
||
acm := slf.messagePool.Get()
|
||
acm.t = MessageTypeAsyncCallback
|
||
if len(attrs) > 2 {
|
||
acm.attrs = append([]any{func() { callback(err) }}, attrs[2:]...)
|
||
} else {
|
||
acm.attrs = []any{func() { callback(err) }}
|
||
}
|
||
slf.pushMessage(acm)
|
||
} else if err != nil {
|
||
log.Error("Server", log.String("MessageType", messageNames[msg.t]), log.Any("error", err), log.String("stack", string(debug.Stack())))
|
||
}
|
||
}); err != nil {
|
||
panic(err)
|
||
}
|
||
case MessageTypeAsyncCallback: // 特殊类型
|
||
attrs[0].(func())()
|
||
case MessageTypeSystem:
|
||
msg.GetSystemMessageAttrs()()
|
||
default:
|
||
log.Warn("Server", log.String("not support message type", msg.t.String()))
|
||
}
|
||
}
|